What may occur in patients with Cushing syndrome?

In patients with Cushing syndrome, increased hair production can occur, primarily due to elevated androgens, which are often associated with excess cortisol levels. Cushing syndrome is characterized by hypercortisolism, frequently resulting from chronic exposure to high levels of cortisol. This condition not only leads to metabolic effects but also influences other hormonal levels, including androgens, which can stimulate hair follicles and cause hirsutism (excessive hair growth) in women.

The other options relate to conditions contrary to the pathophysiology of Cushing syndrome. Decreased cortisol production does not occur in Cushing syndrome, as the hallmark of the syndrome is hypersecretion of cortisol. Hyperpigmentation is typically associated with conditions like Addison's disease rather than Cushing syndrome, where the body is more likely to exhibit pale skin due to the effects of increased cortisol. Weight loss also contradicts the typical presentation of Cushing syndrome, which usually prompts weight gain due to fat redistribution, particularly in the abdominal area. Thus, option related to increased hair production is the most aligned with the physiological changes observed in Cushing syndrome.